北洋时(shí )(🔨)期(🆓),上海滩各方势力犬(quǎn )牙交错。有志之(zhī )士纷纷加入(rù )(🤴)革命党,遭(zāo )到了(le )(🥈)北洋军阀(fá )的迫(🏴)害(hài ),日本人也协助北洋(⏬)军阀大(❣)肆抓(🏇)捕革(📼)命党。陈(⚫)真身为爱国热血青年,为师(👁)父报仇后(hòu ),准备重整精武(🕌)门(mén )。革命(mìng )党杨(🗑)芸双(shuāng )前往秘密地点与(yǔ )上级领导李国(guó )风接头时被(🌙)叛(pàn )徒出卖,李国(guó )风为掩护杨芸双撤退,被日本人抓住。杨芸(yún )双(shuāng )逃跑途中遇到陈(🌞)真(zhēn )(🙄),从日(rì )本(běn )人手里(lǐ )逃(táo )脱(tuō )。杨(⛏)芸双请求陈真帮忙救(jiù )出李国风(⛳),陈(🤳)真(🎋)因想重振精武门(🤖),不想与日(🗳)本人作对(💝),婉拒(jù )后整日教育徒弟习武强身。杨芸(🌹)双(shuāng )打(dǎ )探到李国风被日本人关(guān )押在秘密监狱,而石川凉介(📧)用(yòng )尽(jìn )酷刑也没能拿(💏)到想要的情报(bào )。杨芸双(shuāng )再次(cì )(🏴)找(zhǎo )上陈(🔎)真,求(qiú )其帮(🐖)忙(🆙),陈真深知日本人(⏳)的(🏓)凶残,也明(👛)白(🕕)不能独善(shàn )其身(shēn ),决(🐂)定(👚)救(jiù )人(⏺)。次日,陈(chén )真被日本(běn )人带到监狱,并(bìng )被(❄)石(shí )(💁)川凉介(🧥)要求(qiú )参与(🐈)擂台比武。擂台上,陈真与石川(chuān )凉介打的难(🈸)分伯(bó )仲,几番殊(🚓)死(sǐ )较(🐇)量(♊)后,陈(chén )真打(dǎ )(🗒)败了石川。同时,杨芸双(shuāng )众(zhòng )人也攻(🔮)入(rù )(🈺)监(jiān )狱(yù ),两方(🍏)混(hún )战(zhàn )在一起(😄)……(🐑)